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Commit d7781f7a authored by S. Sandeep Kumar's avatar S. Sandeep Kumar
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asthetic fixes for lte-enb.c

parent c5745c16
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Showing with 286 additions and 348 deletions
targets/RT/USER/lte-enb.c
View file @ d7781f7a
......@@ -108,10 +108,6 @@ unsigned short config_frames[4] = {2,9,11,13};
# endif
#endif
//#define DEBUG_THREADS 1
//#define USRP_DEBUG 1
......@@ -158,15 +154,14 @@ static struct {
volatile uint8_t phy_proc_CC_id;
} sync_phy_proc;
void exit_fun(const char* s);
void init_eNB(eNB_func_t node_function);
void stop_eNB(void);
void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
{
void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB) {
unsigned int aa,slot_offset, slot_offset_F;
int dummy_tx_b[7680*4] __attribute__((aligned(32)));
int i,j, tx_offset;
......@@ -183,7 +178,6 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
((subframe_select(&phy_vars_eNB->frame_parms,subframe)==SF_S))) {
// LOG_D(HW,"Frame %d: Generating slot %d\n",frame,next_slot);
for (aa=0; aa<phy_vars_eNB->frame_parms.nb_antennas_tx; aa++) {
if (phy_vars_eNB->frame_parms.Ncp == EXTENDED) {
PHY_ofdm_mod(&phy_vars_eNB->common_vars.txdataF[0][aa][slot_offset_F],
......@@ -204,7 +198,7 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
7,
&(phy_vars_eNB->frame_parms));
// if S-subframe generate first slot only
if (subframe_select(&phy_vars_eNB->frame_parms,subframe) == SF_DL)
if (subframe_select(&phy_vars_eNB->frame_parms,subframe) == SF_DL)
normal_prefix_mod(&phy_vars_eNB->common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
dummy_tx_b+(phy_vars_eNB->frame_parms.samples_per_tti>>1),
7,
......@@ -237,9 +231,8 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
txdata[j++] = ((int16_t*)dummy_tx_b)[i]<<openair0_cfg[0].iq_txshift;
}
}
}
}
else if ((slot_offset+time_offset[aa]+len)>(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti)) {
tx_offset = (int)slot_offset+time_offset[aa];
txdata = (int16_t*)&phy_vars_eNB->common_vars.txdata[0][aa][tx_offset];
len2 = -tx_offset+LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti;
......@@ -260,7 +253,6 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
}
}
// if S-subframe switch to RX in second subframe
/*
if (subframe_select(&phy_vars_eNB->frame_parms,subframe) == SF_S) {
......@@ -270,34 +262,35 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
}
*/
if ((((phy_vars_eNB->frame_parms.tdd_config==0) ||
(phy_vars_eNB->frame_parms.tdd_config==1) ||
(phy_vars_eNB->frame_parms.tdd_config==2) ||
(phy_vars_eNB->frame_parms.tdd_config==6)) &&
(subframe==0)) || (subframe==5)) {
(phy_vars_eNB->frame_parms.tdd_config==1) ||
(phy_vars_eNB->frame_parms.tdd_config==2) ||
(phy_vars_eNB->frame_parms.tdd_config==6)) &&
(subframe==0)) || (subframe==5)) {
// turn on tx switch N_TA_offset before
//LOG_D(HW,"subframe %d, time to switch to tx (N_TA_offset %d, slot_offset %d) \n",subframe,phy_vars_eNB->N_TA_offset,slot_offset);
for (i=0; i<phy_vars_eNB->N_TA_offset; i++) {
tx_offset = (int)slot_offset+time_offset[aa]+i-phy_vars_eNB->N_TA_offset/2;
if (tx_offset<0)
tx_offset += LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti;
tx_offset = (int)slot_offset+time_offset[aa]+i-phy_vars_eNB->N_TA_offset/2;
if (tx_offset<0)
tx_offset += LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti;
if (tx_offset>=(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti))
tx_offset -= LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti;
if (tx_offset>=(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti))
tx_offset -= LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->frame_parms.samples_per_tti;
phy_vars_eNB->common_vars.txdata[0][aa][tx_offset] = 0x00000000;
phy_vars_eNB->common_vars.txdata[0][aa][tx_offset] = 0x00000000;
}
}
}
}
}
/*!
* \brief The RX UE-specific and TX thread of eNB.
* \param param is a \ref eNB_proc_t structure which contains the info what to process.
* \returns a pointer to an int. The storage is not on the heap and must not be freed.
*/
static void* eNB_thread_rxtx( void* param )
{
static void* eNB_thread_rxtx( void* param ) {
static int eNB_thread_rxtx_status;
eNB_rxtx_proc_t *proc = (eNB_rxtx_proc_t*)param;
......@@ -365,56 +358,47 @@ static void* eNB_thread_rxtx( void* param )
#endif //CPU_AFFINITY
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
if (s != 0) {
perror( "pthread_getaffinity_np");
exit_fun("Error getting processor affinity ");
}
memset(cpu_affinity,0,sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
if (CPU_ISSET(j, &cpuset)) {
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
memset(&sparam, 0, sizeof(sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
if (s != 0) {
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam : ");
exit_fun("Error getting thread priority");
}
if (s != 0) {
perror("pthread_getschedparam : ");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][eNB] TX thread started on CPU %d TID %ld, sched_policy = %s , priority = %d, CPU Affinity=%s \n",sched_getcpu(),gettid(),
LOG_I(HW, "[SCHED][eNB] TX thread started on CPU %d TID %ld, sched_policy = %s , priority = %d, CPU Affinity=%s \n",sched_getcpu(),gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
sparam.sched_priority, cpu_affinity );
#endif //LOW_LATENCY
mlockall(MCL_CURRENT | MCL_FUTURE);
while (!oai_exit) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 );
if (pthread_mutex_lock(&proc->mutex_rxtx) != 0) {
......@@ -462,6 +446,7 @@ static void* eNB_thread_rxtx( void* param )
exit_fun("nothing to add");
break;
}
// wait for our turn or oai_exit
while (sync_phy_proc.phy_proc_CC_id != proc->CC_id && !oai_exit) {
pthread_cond_wait(&sync_phy_proc.cond_phy_proc_tx,
......@@ -473,28 +458,27 @@ static void* eNB_thread_rxtx( void* param )
exit_fun("nothing to add");
}
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_TX_ENB, proc->frame_tx );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_SUBFRAME_NUMBER_TX_ENB, proc->subframe_tx );
if (oai_exit)
break;
if (oai_exit) break;
if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RRU_IF4) {
phy_procedures_eNB_TX(PHY_vars_eNB_g[0][proc->CC_id], proc, 0, no_relay, NULL );
/* we're done, let the next one proceed */
if (pthread_mutex_lock(&sync_phy_proc.mutex_phy_proc_tx) != 0) {
LOG_E(PHY, "[SCHED][eNB] error locking PHY proc mutex for eNB TX proc\n");
exit_fun("nothing to add");
break;
}
sync_phy_proc.phy_proc_CC_id++;
sync_phy_proc.phy_proc_CC_id %= MAX_NUM_CCs;
pthread_cond_broadcast(&sync_phy_proc.cond_phy_proc_tx);
if (pthread_mutex_unlock(&sync_phy_proc.mutex_phy_proc_tx) != 0) {
LOG_E(PHY, "[SCHED][eNB] error unlocking PHY proc mutex for eNB TX proc\n");
exit_fun("nothing to add");
break;
phy_procedures_eNB_TX(PHY_vars_eNB_g[0][proc->CC_id], proc, 0, no_relay, NULL );
/* we're done, let the next one proceed */
if (pthread_mutex_lock(&sync_phy_proc.mutex_phy_proc_tx) != 0) {
LOG_E(PHY, "[SCHED][eNB] error locking PHY proc mutex for eNB TX proc\n");
exit_fun("nothing to add");
break;
}
sync_phy_proc.phy_proc_CC_id++;
sync_phy_proc.phy_proc_CC_id %= MAX_NUM_CCs;
pthread_cond_broadcast(&sync_phy_proc.cond_phy_proc_tx);
if (pthread_mutex_unlock(&sync_phy_proc.mutex_phy_proc_tx) != 0) {
LOG_E(PHY, "[SCHED][eNB] error unlocking PHY proc mutex for eNB TX proc\n");
exit_fun("nothing to add");
break;
}
} else {
......@@ -504,53 +488,51 @@ static void* eNB_thread_rxtx( void* param )
}
}
// eNodeB_3GPP and RRU create txdata and write to RF device
if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RCC_IF4) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 1 );
do_OFDM_mod_rt( proc->subframe_tx, PHY_vars_eNB_g[0][proc->CC_id] );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 0 );
/*
short *txdata = (short*)&PHY_vars_eNB_g[0][proc->CC_id]->common_vars.txdata[0][0][proc->subframe_tx*PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.samples_per_tti];
int i;
for (i=0;i<PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.samples_per_tti*2;i+=8) {
txdata[i] = 2047;
txdata[i+1] = 0;
txdata[i+2] = 0;
txdata[i+3] = 2047;
txdata[i+4] = -2047;
txdata[i+5] = 0;
txdata[i+6] = 0;
txdata[i+7] = -2047; }
*/
// Transmit TX buffer based on timestamp from RX
// eNodeB_3GPP and RRU create txdata and write to RF device
if (PHY_vars_eNB_g[0][proc->CC_id]->node_function != NGFI_RCC_IF4) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 1 );
do_OFDM_mod_rt( proc->subframe_tx, PHY_vars_eNB_g[0][proc->CC_id] );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_SFGEN , 0 );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
int i;
for (i=0; i<PHY_vars_eNB_g[0][0]->frame_parms.nb_antennas_tx; i++)
txp[i] = (void*)&PHY_vars_eNB_g[0][0]->common_vars.txdata[0][i][proc->subframe_tx*PHY_vars_eNB_g[0][0]->frame_parms.samples_per_tti];
// if symb_written < spp ==> error
PHY_vars_eNB_g[0][proc->CC_id]->rfdevice.trx_write_func(&PHY_vars_eNB_g[0][proc->CC_id]->rfdevice,
(proc->timestamp_tx-openair0_cfg[0].tx_sample_advance),
txp,
PHY_vars_eNB_g[0][0]->frame_parms.samples_per_tti,
PHY_vars_eNB_g[0][0]->frame_parms.nb_antennas_tx,
1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
/*
short *txdata = (short*)&PHY_vars_eNB_g[0][proc->CC_id]->common_vars.txdata[0][0][proc->subframe_tx*PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.samples_per_tti];
int i;
for (i=0;i<PHY_vars_eNB_g[0][proc->CC_id]->frame_parms.samples_per_tti*2;i+=8) {
txdata[i] = 2047;
txdata[i+1] = 0;
txdata[i+2] = 0;
txdata[i+3] = 2047;
txdata[i+4] = -2047;
txdata[i+5] = 0;
txdata[i+6] = 0;
txdata[i+7] = -2047; }
*/
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_tx-openair0_cfg[0].tx_sample_advance)&0xffffffff );
// Transmit TX buffer based on timestamp from RX
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
int i;
for (i=0; i<PHY_vars_eNB_g[0][0]->frame_parms.nb_antennas_tx; i++)
txp[i] = (void*)&PHY_vars_eNB_g[0][0]->common_vars.txdata[0][i][proc->subframe_tx*PHY_vars_eNB_g[0][0]->frame_parms.samples_per_tti];
// if symb_written < spp ==> error
PHY_vars_eNB_g[0][proc->CC_id]->rfdevice.trx_write_func(&PHY_vars_eNB_g[0][proc->CC_id]->rfdevice,
(proc->timestamp_tx-openair0_cfg[0].tx_sample_advance),
txp,
PHY_vars_eNB_g[0][0]->frame_parms.samples_per_tti,
PHY_vars_eNB_g[0][0]->frame_parms.nb_antennas_tx,
1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_tx-openair0_cfg[0].tx_sample_advance)&0xffffffff );
} else { // RCC sends the txdataF using send_IF4 function
} else {
/// **** send_IF4 of txdataF to RRU **** ///
//send_IF4(PHY_vars_eNB_g[0][proc->CC_id], proc);
/// **** send_IF4 of txdataF to RRU **** ///
//send_IF4(PHY_vars_eNB_g[0][proc->CC_id], proc);
}
}
if (pthread_mutex_lock(&proc->mutex_rxtx) != 0) {
LOG_E( PHY, "[SCHED][eNB] error locking mutex for eNB TX proc\n");
......@@ -567,19 +549,18 @@ static void* eNB_thread_rxtx( void* param )
}
stop_meas( &softmodem_stats_rxtx_sf );
#ifdef LOWLATENCY
if (opp_enabled){
if(softmodem_stats_rxtx_sf.diff_now/(cpuf) > attr.sched_runtime){
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RUNTIME_TX_ENB, (softmodem_stats_rxtx_sf.diff_now/cpuf - attr.sched_runtime)/1000000.0);
if (opp_enabled) {
if(softmodem_stats_rxtx_sf.diff_now/(cpuf) > attr.sched_runtime) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RUNTIME_TX_ENB, (softmodem_stats_rxtx_sf.diff_now/cpuf - attr.sched_runtime)/1000000.0);
}
}
#endif
print_meas_now(&softmodem_stats_rxtx_sf,"eNB_TX_SF",tx_time_file);
print_meas_now(&softmodem_stats_rxtx_sf,"eNB_TX_SF",tx_time_file);
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 );
#ifdef DEBUG_THREADS
......@@ -591,13 +572,11 @@ static void* eNB_thread_rxtx( void* param )
}
#if defined(ENABLE_ITTI)
static void wait_system_ready (char *message, volatile int *start_flag)
/* Wait for eNB application initialization to be complete (eNB registration to MME) */
{
/* Wait for eNB application initialization to be complete (eNB registration to MME) */
static void wait_system_ready (char *message, volatile int *start_flag) {
static char *indicator[] = {". ", ".. ", "... ", ".... ", ".....",
" ....", " ...", " ..", " .", " "
};
" ....", " ...", " ..", " .", " "};
int i = 0;
while ((!oai_exit) && (*start_flag == 0)) {
......@@ -609,16 +588,16 @@ static void wait_system_ready (char *message, volatile int *start_flag)
LOG_D(EMU,"\n");
}
#endif
/*!
* \brief The RX common thread of eNB.
* \param param is a \ref eNB_proc_t structure which contains the info what to process.
* \returns a pointer to an int. The storage is not on the heap and must not be freed.
*/
static void* eNB_thread_rx_common( void* param )
{
static void* eNB_thread_rx_common( void* param ) {
static int eNB_thread_rx_status;
eNB_proc_t *proc = (eNB_proc_t*)param;
......@@ -629,7 +608,7 @@ static void* eNB_thread_rx_common( void* param )
char rx_time_name[101];
//int i;
if (opp_enabled == 1){
if (opp_enabled == 1) {
snprintf(rx_time_name, 100,"/tmp/%s_rx_time_thread_sf", "eNB");
rx_time_file = fopen(rx_time_name,"w");
}
......@@ -674,14 +653,12 @@ static void* eNB_thread_rx_common( void* param )
/* Set CPU Affinity only if number of CPUs >2 */
CPU_ZERO(&cpuset);
#ifdef CPU_AFFINITY
if (get_nprocs() >2)
{
if (get_nprocs() >2) {
for (j = 1; j < get_nprocs(); j++)
CPU_SET(j, &cpuset);
CPU_SET(j, &cpuset);
s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
if (s != 0) {
perror( "pthread_setaffinity_np");
exit_fun (" Error setting processor affinity :");
}
......@@ -690,66 +667,58 @@ static void* eNB_thread_rx_common( void* param )
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror ("pthread_getaffinity_np");
exit_fun (" Error getting processor affinity :");
if (s != 0) {
perror ("pthread_getaffinity_np");
exit_fun (" Error getting processor affinity :");
}
memset(cpu_affinity,0, sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
if (CPU_ISSET(j, &cpuset)) {
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO);
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
if (s != 0) {
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
memset(&sparam, 0 , sizeof (sparam));
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam");
exit_fun("Error getting thread priority");
}
if (s != 0) {
perror("pthread_getschedparam");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][eNB] RX thread started on CPU %d TID %ld, sched_policy = %s, priority = %d, CPU Affinity = %s\n", sched_getcpu(),gettid(),
LOG_I(HW, "[SCHED][eNB] RX thread started on CPU %d TID %ld, sched_policy = %s, priority = %d, CPU Affinity = %s\n", sched_getcpu(),gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
sparam.sched_priority, cpu_affinity);
#endif // LOWLATENCY
mlockall(MCL_CURRENT | MCL_FUTURE);
mlockall(MCL_CURRENT | MCL_FUTURE);
// wait for top-level synchronization and do one acquisition to get timestamp for setting frame/subframe of TX and RX threads
printf( "waiting for sync (eNB_thread_rx_common)\n");
pthread_mutex_lock( &sync_mutex );
// wait for top-level synchronization and do one acquisition to get timestamp for setting frame/subframe of TX and RX threads
printf( "waiting for sync (eNB_thread_rx_common)\n");
pthread_mutex_lock( &sync_mutex );
while (sync_var<0)
pthread_cond_wait( &sync_cond, &sync_mutex );
while (sync_var<0)
pthread_cond_wait( &sync_cond, &sync_mutex );
pthread_mutex_unlock(&sync_mutex);
pthread_mutex_unlock(&sync_mutex);
printf( "got sync (eNB_thread)\n" );
printf( "got sync (eNB_thread)\n" );
#if defined(ENABLE_ITTI)
wait_system_ready ("Waiting for eNB application to be ready %s\r", &start_eNB);
......@@ -767,96 +736,90 @@ static void* eNB_thread_rx_common( void* param )
LOG_E(HW,"Could not start the IF device\n");
}
// This is a forever while loop, it loops over subframes which are scheduled by incoming samples from HW devices
while (!oai_exit) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX, 0 );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 0 );
start_meas( &softmodem_stats_rx_sf );
// This is a forever while loop, it loops over subframes which are scheduled by incoming samples from HW devices
while (!oai_exit) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX, 0 );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 0 );
start_meas( &softmodem_stats_rx_sf );
if (oai_exit) break;
if (oai_exit) break;
if ((((fp->frame_type == TDD )&&(subframe_select(fp,proc->subframe_rx)==SF_UL)) ||
(fp->frame_type == FDD))) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 1 );
// this spawns the prach inside and updates the frame and subframe counters
phy_procedures_eNB_common_RX(eNB, 0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 0 );
}
// choose even or odd thread for RXn-TXnp4 processing
eNB_rxtx_proc_t *proc_rxtx = &proc->proc_rxtx[proc->subframe_rx&1];
// wake up TX for subframe n+4
// lock the TX mutex and make sure the thread is ready
if (pthread_mutex_lock(&proc_rxtx->mutex_rxtx) != 0) {
LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB TX thread %d (IC %d)\n", proc_rxtx->instance_cnt_rxtx );
exit_fun( "error locking mutex_rxtx" );
break;
}
int cnt_rxtx = ++proc_rxtx->instance_cnt_rxtx;
// We have just received and processed the common part of a subframe, say n.
// TS_rx is the last received timestamp (start of 1st slot), TS_tx is the desired
// transmitted timestamp of the next TX slot (first).
// The last (TS_rx mod samples_pexr_frame) was n*samples_per_tti,
// we want to generate subframe (n+3), so TS_tx = TX_rx+3*samples_per_tti,
// and proc->subframe_tx = proc->subframe_rx+3
proc_rxtx->timestamp_tx = proc->timestamp_rx + (4*fp->samples_per_tti);
proc_rxtx->frame_rx = proc->frame_rx;
proc_rxtx->subframe_rx = proc->subframe_rx;
proc_rxtx->frame_tx = (proc_rxtx->subframe_rx > 5) ? (proc_rxtx->frame_rx+1)&1023 : proc_rxtx->frame_rx;
proc_rxtx->subframe_tx = (proc_rxtx->subframe_rx + 4)%10;
if ((((fp->frame_type == TDD )&&(subframe_select(fp,proc->subframe_rx)==SF_UL)) ||
(fp->frame_type == FDD))) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 1 );
// this spawns the prach inside and updates the frame and subframe counters
phy_procedures_eNB_common_RX(eNB, 0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_COMMON, 0 );
}
// choose even or odd thread for RXn-TXnp4 processing
eNB_rxtx_proc_t *proc_rxtx = &proc->proc_rxtx[proc->subframe_rx&1];
// wake up TX for subframe n+4
// lock the TX mutex and make sure the thread is ready
if (pthread_mutex_lock(&proc_rxtx->mutex_rxtx) != 0) {
LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB TX thread %d (IC %d)\n", proc_rxtx->instance_cnt_rxtx );
exit_fun( "error locking mutex_rxtx" );
break;
}
int cnt_rxtx = ++proc_rxtx->instance_cnt_rxtx;
// We have just received and processed the common part of a subframe, say n.
// TS_rx is the last received timestamp (start of 1st slot), TS_tx is the desired
// transmitted timestamp of the next TX slot (first).
// The last (TS_rx mod samples_pexr_frame) was n*samples_per_tti,
// we want to generate subframe (n+3), so TS_tx = TX_rx+3*samples_per_tti,
// and proc->subframe_tx = proc->subframe_rx+3
proc_rxtx->timestamp_tx = proc->timestamp_rx + (4*fp->samples_per_tti);
proc_rxtx->frame_rx = proc->frame_rx;
proc_rxtx->subframe_rx = proc->subframe_rx;
proc_rxtx->frame_tx = (proc_rxtx->subframe_rx > 5) ? (proc_rxtx->frame_rx+1)&1023 : proc_rxtx->frame_rx;
proc_rxtx->subframe_tx = (proc_rxtx->subframe_rx + 4)%10;
pthread_mutex_unlock( &proc_rxtx->mutex_rxtx );
pthread_mutex_unlock( &proc_rxtx->mutex_rxtx );
if (cnt_rxtx == 0){
// the thread was presumably waiting where it should and can now be woken up
if (pthread_cond_signal(&proc_rxtx->cond_rxtx) != 0) {
LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB RXn-TXnp4 thread\n");
exit_fun( "ERROR pthread_cond_signal" );
break;
}
} else {
LOG_W( PHY,"[eNB] Frame %d, eNB RXn-TXnp4 thread busy!! (cnt_rxtx %i)\n", proc_rxtx->frame_tx, cnt_rxtx );
exit_fun( "TX thread busy" );
break;
}
if (cnt_rxtx == 0) {
// the thread was presumably waiting where it should and can now be woken up
if (pthread_cond_signal(&proc_rxtx->cond_rxtx) != 0) {
LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB RXn-TXnp4 thread\n");
exit_fun( "ERROR pthread_cond_signal" );
break;
}
} else {
LOG_W( PHY,"[eNB] Frame %d, eNB RXn-TXnp4 thread busy!! (cnt_rxtx %i)\n", proc_rxtx->frame_tx, cnt_rxtx );
exit_fun( "TX thread busy" );
break;
}
stop_meas( &softmodem_stats_rxtx_sf );
stop_meas( &softmodem_stats_rxtx_sf );
#ifdef LOWLATENCY
if (opp_enabled){
if(softmodem_stats_rxtx_sf.diff_now/(cpuf) > attr.sched_runtime){
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RUNTIME_RXTX_ENB, (softmodem_stats_rxtx_sf.diff_now/cpuf - attr.sched_runtime)/1000000.0);
}
}
if (opp_enabled){
if(softmodem_stats_rxtx_sf.diff_now/(cpuf) > attr.sched_runtime){
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RUNTIME_RXTX_ENB, (softmodem_stats_rxtx_sf.diff_now/cpuf - attr.sched_runtime)/1000000.0);
}
}
#endif // LOWLATENCY
print_meas_now(&softmodem_stats_rx_sf,"eNB_RX_SF", rx_time_file);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 );
}
print_meas_now(&softmodem_stats_rx_sf,"eNB_RX_SF", rx_time_file);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 );
}
#ifdef DEBUG_THREADS
printf( "Exiting eNB thread RXn-TXnp4\n");
printf( "Exiting eNB thread RXn-TXnp4\n");
#endif
eNB_thread_rx_status = 0;
return &eNB_thread_rx_status;
eNB_thread_rx_status = 0;
return &eNB_thread_rx_status;
}
/*!
* \brief The prach receive thread of eNB.
* \param param is a \ref eNB_proc_t structure which contains the info what to process.
* \returns a pointer to an int. The storage is not on the heap and must not be freed.
*/
static void* eNB_thread_prach( void* param )
{
static void* eNB_thread_prach( void* param ) {
static int eNB_thread_prach_status;
eNB_proc_t *proc = (eNB_proc_t*)param;
......@@ -865,7 +828,6 @@ static void* eNB_thread_prach( void* param )
eNB_thread_prach_status = 0;
MSC_START_USE();
#ifdef LOWLATENCY
struct sched_attr attr;
......@@ -903,113 +865,102 @@ static void* eNB_thread_prach( void* param )
/* Set CPU Affinity only if number of CPUs >2 */
CPU_ZERO(&cpuset);
#ifdef CPU_AFFINITY
if (get_nprocs() >2)
{
if (get_nprocs() >2) {
for (j = 1; j < get_nprocs(); j++)
CPU_SET(j, &cpuset);
CPU_SET(j, &cpuset);
s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
if (s != 0) {
perror( "pthread_setaffinity_np");
exit_fun (" Error setting processor affinity :");
}
}
#endif //CPU_AFFINITY
/* Check the actual affinity mask assigned to the thread */
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror ("pthread_getaffinity_np");
exit_fun (" Error getting processor affinity :");
if (s != 0) {
perror ("pthread_getaffinity_np");
exit_fun (" Error getting processor affinity :");
}
memset(cpu_affinity,0, sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
if (CPU_ISSET(j, &cpuset)) {
char temp[1024];
sprintf (temp, " CPU_%d", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO)-2;
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
if (s != 0) {
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
memset(&sparam, 0 , sizeof (sparam));
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam");
exit_fun("Error getting thread priority");
}
if (s != 0) {
perror("pthread_getschedparam");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][eNB] PRACH thread started on CPU %d TID %ld, sched_policy = %s, priority = %d, CPU Affinity = %s\n", sched_getcpu(),gettid(),
LOG_I(HW, "[SCHED][eNB] PRACH thread started on CPU %d TID %ld, sched_policy = %s, priority = %d, CPU Affinity = %s\n", sched_getcpu(),gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
sparam.sched_priority, cpu_affinity);
#endif // LOWLATENCY
mlockall(MCL_CURRENT | MCL_FUTURE);
mlockall(MCL_CURRENT | MCL_FUTURE);
while (!oai_exit) {
if (oai_exit) break;
while (!oai_exit) {
if (oai_exit) break;
if (pthread_mutex_lock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error locking mutex for eNB PRACH\n");
exit_fun( "error locking mutex" );
break;
}
while (proc->instance_cnt_prach < 0) {
// most of the time the thread is waiting here
// proc->instance_cnt_prach is -1
pthread_cond_wait( &proc->cond_prach, &proc->mutex_prach ); // this unlocks mutex_rxtx while waiting and then locks it again
}
if (pthread_mutex_unlock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error unlocking mutex for eNB PRACH\n");
exit_fun( "error unlocking mutex" );
break;
}
if (pthread_mutex_lock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error locking mutex for eNB PRACH\n");
exit_fun( "error locking mutex" );
break;
}
while (proc->instance_cnt_prach < 0) {
// most of the time the thread is waiting here
// proc->instance_cnt_prach is -1
pthread_cond_wait( &proc->cond_prach, &proc->mutex_prach ); // this unlocks mutex_rxtx while waiting and then locks it again
}
if (pthread_mutex_unlock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error unlocking mutex for eNB PRACH\n");
exit_fun( "error unlocking mutex" );
break;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,1);
prach_procedures(eNB,0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,1);
prach_procedures(eNB,0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,0);
if (pthread_mutex_lock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error locking mutex for eNB PRACH proc %d\n");
exit_fun( "error locking mutex" );
break;
}
proc->instance_cnt_prach--;
if (pthread_mutex_lock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error locking mutex for eNB PRACH proc %d\n");
exit_fun( "error locking mutex" );
break;
}
if (pthread_mutex_unlock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error unlocking mutex for eNB RX proc %d\n");
exit_fun( "error unlocking mutex" );
break;
}
}
proc->instance_cnt_prach--;
if (pthread_mutex_unlock(&proc->mutex_prach) != 0) {
LOG_E( PHY, "[SCHED][eNB] error unlocking mutex for eNB RX proc %d\n");
exit_fun( "error unlocking mutex" );
break;
}
}
#ifdef DEBUG_THREADS
printf( "Exiting eNB thread PRACH\n");
......@@ -1020,10 +971,8 @@ static void* eNB_thread_prach( void* param )
}
void init_eNB_proc(void)
{
void init_eNB_proc(void) {
int i;
int CC_id;
PHY_VARS_eNB *eNB;
......@@ -1033,7 +982,6 @@ void init_eNB_proc(void)
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
eNB = PHY_vars_eNB_g[0][CC_id];
proc = &eNB->proc;
proc_rxtx = proc->proc_rxtx;
#ifndef LOWLATENCY
......@@ -1097,7 +1045,6 @@ void init_eNB_proc(void)
pthread_setname_np( proc->pthread_rx, name );
}
/* setup PHY proc TX sync mechanism */
pthread_mutex_init(&sync_phy_proc.mutex_phy_proc_tx, NULL);
pthread_cond_init(&sync_phy_proc.cond_phy_proc_tx, NULL);
......@@ -1108,8 +1055,8 @@ void init_eNB_proc(void)
/*!
* \brief Terminate eNB TX and RX threads.
*/
void kill_eNB_proc(void)
{
void kill_eNB_proc(void) {
int *status;
PHY_VARS_eNB *eNB;
eNB_proc_t *proc;
......@@ -1133,6 +1080,7 @@ void kill_eNB_proc(void)
#ifdef DEBUG_THREADS
printf( "Joining eNB TX CC_id %d thread\n", CC_id);
#endif
int result,i;
for (i=0;i<1;i++) {
pthread_join( proc_rxtx[i].pthread_rxtx, (void**)&status );
......@@ -1148,16 +1096,14 @@ void kill_eNB_proc(void)
printf( "The thread was killed. No status available.\n" );
}
}
#else
UNUSED(result);
#endif
pthread_mutex_destroy( &proc_rxtx[i].mutex_rxtx );
pthread_cond_destroy( &proc_rxtx[i].cond_rxtx );
}
#ifdef DEBUG_THREADS
printf( "Killing RX CC_id %d thread\n", CC_id);
#endif
......@@ -1165,10 +1111,10 @@ void kill_eNB_proc(void)
#ifdef DEBUG_THREADS
printf( "Joining eNB RX CC_id %d thread ...\n", CC_id);
#endif
result = pthread_join( proc->pthread_rx, (void**)&status );
#ifdef DEBUG_THREADS
#ifdef DEBUG_THREADS
if (result != 0) {
printf( "Error joining thread.\n" );
} else {
......@@ -1177,8 +1123,7 @@ void kill_eNB_proc(void)
} else {
printf( "The thread was killed. No status available.\n" );
}
}
}
#else
UNUSED(result);
#endif
......@@ -1193,17 +1138,17 @@ void kill_eNB_proc(void)
Each rf chain is is addressed by the card number and the chain on the card. The
rf_map specifies for each CC, on which rf chain the mapping should start. Multiple
antennas are mapped to successive RF chains on the same card. */
int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_cfg, openair0_rf_map rf_map[MAX_NUM_CCs])
{
int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_cfg, openair0_rf_map rf_map[MAX_NUM_CCs]) {
int i, CC_id;
#ifndef EXMIMO
uint16_t N_TA_offset = 0;
#else
int j;
#endif
LTE_DL_FRAME_PARMS *frame_parms;
LTE_DL_FRAME_PARMS *frame_parms;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
if (phy_vars_eNB[CC_id]) {
......@@ -1213,18 +1158,15 @@ int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_c
printf("phy_vars_eNB[%d] not initialized\n", CC_id);
return(-1);
}
#ifndef EXMIMO
if (frame_parms->frame_type == TDD) {
if (frame_parms->N_RB_DL == 100)
N_TA_offset = 624;
else if (frame_parms->N_RB_DL == 50)
N_TA_offset = 624/2;
else if (frame_parms->N_RB_DL == 25)
N_TA_offset = 624/4;
}
if (frame_parms->frame_type == TDD) {
if (frame_parms->N_RB_DL == 100)
N_TA_offset = 624;
else if (frame_parms->N_RB_DL == 50)
N_TA_offset = 624/2;
else if (frame_parms->N_RB_DL == 25)
N_TA_offset = 624/4;
}
#endif
// replace RX signal buffers with mmaped HW versions
......@@ -1285,8 +1227,7 @@ int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_c
rxdata[i] = (int32_t*)(32 + malloc16(32+openair0_cfg[rf_map[CC_id].card].samples_per_frame*sizeof(int32_t))); // FIXME broken memory allocation
phy_vars_eNB[CC_id]->common_vars.rxdata[0][i] = rxdata[i]-N_TA_offset; // N_TA offset for TDD FIXME! N_TA_offset > 16 => access of unallocated memory
memset(rxdata[i], 0, openair0_cfg[rf_map[CC_id].card].samples_per_frame*sizeof(int32_t));
printf("rxdata[%d] @ %p (%p) (N_TA_OFFSET %d)\n", i, phy_vars_eNB[CC_id]->common_vars.rxdata[0][i],rxdata[i],N_TA_offset);
printf("rxdata[%d] @ %p (%p) (N_TA_OFFSET %d)\n", i, phy_vars_eNB[CC_id]->common_vars.rxdata[0][i],rxdata[i],N_TA_offset);
}
for (i=0; i<frame_parms->nb_antennas_tx; i++) {
......@@ -1295,19 +1236,17 @@ int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_c
phy_vars_eNB[CC_id]->common_vars.txdata[0][i] = txdata[i];
memset(txdata[i],0, openair0_cfg[rf_map[CC_id].card].samples_per_frame*sizeof(int32_t));
printf("txdata[%d] @ %p\n", i, phy_vars_eNB[CC_id]->common_vars.txdata[0][i]);
}
#endif
}
return(0);
}
void reset_opp_meas(void) {
int sfn;
reset_meas(&softmodem_stats_mt);
reset_meas(&softmodem_stats_hw);
......@@ -1318,6 +1257,7 @@ void reset_opp_meas(void) {
}
}
void print_opp_meas(void) {
int sfn=0;
......@@ -1333,7 +1273,6 @@ void print_opp_meas(void) {
void init_eNB(eNB_func_t node_function) {
int CC_id;
for (CC_id=0;CC_id<MAX_NUM_CCs;CC_id++)
......@@ -1363,11 +1302,11 @@ void stop_eNB() {
#ifdef DEBUG_THREADS
printf("Joining eNB_thread ...");
#endif
int *eNB_thread_status_p;
int result = pthread_join( main_eNB_thread, (void**)&eNB_thread_status_p );
int *eNB_thread_status_p;
int result = pthread_join( main_eNB_thread, (void**)&eNB_thread_status_p );
#ifdef DEBUG_THREADS
if (result != 0) {
printf( "\nError joining main_eNB_thread.\n" );
} else {
......@@ -1377,7 +1316,6 @@ void stop_eNB() {
printf( "The thread was killed. No status available.\n");
}
}
#else
UNUSED(result);
#endif // DEBUG_THREADS
......
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